index.js

require('dotenv').config()

const express = require('express');
const path = require('path')
const routes = require('./src/routes')

const lti = require('ltijs').Provider

// Setup
lti.setup(process.env.LTI_TOOL_KEY, {
  url: `mongodb://${process.env.LTI_TOOL_DB_HOST}:${process.env.LTI_TOOL_DB_PORT}/${process.env.LTI_TOOL_DB_NAME}`,
  connection: {
    authSource: process.env.LTI_TOOL_DB_AUTH,
    user: process.env.LTI_TOOL_DB_USERNAME,
    pass: process.env.LTI_TOOL_DB_PASSWORD
  }
},
{
  staticPath: path.join(__dirname, './public'), // Path to static files
  cookies: {
    secure: false, // Set secure to true if the testing platform is in a different domain and https is being used
    sameSite: '' // Set sameSite to 'None' if the testing platform is in a different domain and https is being used
  },
  devMode: true // Set DevMode to true if the testing platform is in a different domain and https is not being used
});

// When receiving successful LTI launch redirects to app
lti.onConnect(async (token, req, res) => {
  return res.sendFile(path.join(__dirname, './public/index.html'))
})

// When receiving deep linking request redirects to deep screen
lti.onDeepLinking(async (token, req, res) => {
  return lti.redirect(res, '/lti-tool/deeplink', { newResource: true })
})

// Setting up routes
lti.app.use(routes)

// Setup function
const setup = async () => {
  console.log(process.env);
  await lti.deploy({ serverless: true });

  const app = express();
  app.use("/lti-tool", lti.app);
  app.listen(process.env.LTI_TOOL_PORT);

  /**
   * Register platform
   */
  const platform = await lti.registerPlatform({
    url: process.env.MOODLE_URL,
    name: process.env.LTI_TOOL_NAME,
    clientId: process.env.LTI_TOOL_CLIENT_ID,
    authenticationEndpoint: `${process.env.MOODLE_URL}/mod/lti/auth.php`,
    accesstokenEndpoint: `${process.env.MOODLE_URL}/mod/lti/token.php`,
    authConfig: {
      method: 'JWK_SET',
      key: `${process.env.MOODLE_URL}/mod/lti/certs.php`
    }
  }) 

  const authConfig = await platform.platformAuthConfig();
  console.log(authConfig);
  console.log(await platform.platformPublicKey())
}

setup()